Hore na khetho ea mokhoa oa khokahano pakeng tsa valve ea serurubele le phaephe kapa lisebelisoa e nepahetse kapa che e tla ama ka kotloloho monyetla oa ho matha, ho rotha, ho rotha le ho lutla ha valve ea phaephe. Mekhoa e tloaelehileng ea khokahano ea valve e kenyelletsa: khokahano ea flange, khokahano ea wafer, khokahano ea ho tjheseletsa ea butt, khokahano ea khoele, khokahano ea ferrule, khokahano ea clamp, khokahano ea ho itlama le mefuta e meng ea khokahano.
A. Khokahano ea Flange
Khokahano ea Flange kevalafo ea serurubele e nang le flangeka di-flange tse mahlakoreng ka bobedi a mmele wa valve, tse tsamaellanang le di-flange tse hodima phaephe, mme di kentswe ka hara phaephe ka ho hokela di-flange. Kgokelo ya Flange ke mofuta wa kgokelo o sebediswang haholo di-valve. Di-flange di arotswe ka bokahodimo bo kobehileng (RF), bokahodimo bo bataletseng (FF), bokahodimo bo kobehileng le bokahodimo bo kobehileng (MF), jj.
B. Khokahano ea wafer
Valve e kentsoe bohareng ba li-flange tse peli, 'me' mele oa valve oavalve ea serurubele ea waferhangata e na le lesoba la ho beha sebaka ho nolofatsa ho kenya le ho beha sebaka.
C. Khokahano ea solder
(1) Kgokelo ya ho tjheseletsa di-butt: Dipheletso ka bobedi tsa mmele wa valve di sebetswa ho ba di-butt welding grooves ho ya ka ditlhoko tsa ho tjheseletsa di-butt, tse tsamaellanang le di-welding grooves tsa phaephe, mme di kentswe phaepheng ka ho tjheseletsa.
(2) Kgokelo ya ho tjheseletsa disokete: Dipheletso ka bobedi tsa mmele wa valve di sebetswa ho ya ka ditlhoko tsa ho tjheseletsa disokete, mme di hokahantswe le phaephe ka ho tjheseletsa disokete.
D. Khokahano e nang le khoele
Likhokahano tse nang le khoele ke mokhoa o bonolo oa ho hokahanya 'me hangata li sebelisoa bakeng sa li-valve tse nyane. 'Mele oa valve o sebetsoa ho latela maemo a khoele ka 'ngoe, 'me ho na le mefuta e 'meli ea khoele ea kahare le khoele ea kantle. E tsamaellana le khoele e holim'a phaephe. Ho na le mefuta e 'meli ea likhokahano tse nang le khoele:
(1) Ho kwala ka ho toba: Likhoele tsa ka hare le tsa kantle li bapala karolo ea ho kwala ka ho toba. E le ho netefatsa hore khokahano ha e lutle, hangata e tlatsoa ka oli ea loto, hemp ea khoele le theipi ea thepa e tala ea PTFE; tseo har'a tsona theipi ea thepa e tala ea PTFE e sebelisoang haholo; thepa ena e na le khanyetso e ntle ea mafome le phello e ntle ea ho kwala. E bonolo ho e sebelisa le ho e boloka. Ha e qhaqhoa, e ka tlosoa ka ho feletseng hobane ke filimi e sa khomareleng, e leng se betere haholo ho feta oli ea loto le hemp ea khoele.
(2) Ho kwala ka tsela e sa tobang: matla a ho tiisa khoele a fetisetsoa ho gasket pakeng tsa difofane tse pedi, e le hore gasket e bapale karolo ya ho kwala.
Khokahano ea ferrule ea E.
Kgokelo ya ferrule e se e ntshetsitswe pele naheng ya heso dilemong tsa morao tjena. Molao-motheo wa yona wa kgokelo le ho kwala ke hore ha nate e tiisitswe, ferrule e ba tlasa kgatello, e le hore lehlakore la ferrule le lome leboteng le ka ntle la phaephe, mme bokahodimo ba khoune e ka ntle ya ferrule bo hokahane le lenonyello tlasa kgatello. Bokahare ba mmele bo hokahane haufi le bokahodimo bo tenyetsehang, kahoo ho dutla ho ka thibelwa ka tshepo. Jwalo ka di-valve tsa disebediswa. Melemo ya mofuta ona wa kgokelo ke:
(1) Boholo bo bonyenyane, boima bo bobebe, sebopeho se bonolo, ho qhaqha le ho kopanya habonolo;
(2) Matla a matla a kgokelo, mefuta e mengata ya tshebediso, kganyetso e phahameng ya kgatello (1000 kg/cm2), mocheso o phahameng (650 ° C) le ho tshoha le ho thothomela;
(3) Ho ka khethoa mefuta e fapaneng ea thepa, e loketseng ho thibela ho bola;
(4) Litlhoko tsa ho nepahala ha mechini ha li holimo;
(5) E loketse ho kenngoa sebakeng se phahameng.
Hona jwale, foromo ya kgokelo ya ferrule e se e amohetswe dihlahisweng tse ding tsa di-valve tse bophara bo bonyenyane naheng ya heso.
F. Khokahano e kobehileng
Mokhoa ona oa khokahano e potlakileng, o hloka liboutu tse peli feela, 'mevalve ea serurubele e nang le groove ende loketse khatello e tlaseli-valve tsa serurubeletse atisang ho qhaqhoa, tse kang di-valve tsa bohloeki.
G. Kgokelo ya ho ikgabisa ka hare
Mefuta eohle ea khokahano e boletsoeng ka holimo e sebelisa matla a kantle ho fokotsa khatello ea sesebelisoa ho fihlela ho koala. Se latelang se hlalosa foromo ea khokahano e ithatafatsang e sebelisang khatello e mahareng.
Lesale la yona la ho tiisa le kentswe khouneng e ka hare mme le etsa sekhutlo se itseng moo lehlakore le shebaneng le sekgahla. Kgatelelo ya sekgahla e fetisetswa khouneng e ka hare ebe e ya lesale la ho tiisa. Hodima bokahodimo ba khoune ya sekhutlo se itseng, ho hlahiswa matla a mabedi a dikarolo, le leng le nang le Mohala o bohareng wa mmele wa valve o bapile le kantle, mme le leng le hatelletswe leboteng le ka hare la mmele wa valve. Matla a ho qetela ke matla a ikgomaretsang. Ha kgatello e mahareng e le kgolo, matla a ikgomaretsang a ba maholo. Ka hona, foromo ena ya kgokelo e loketse di-valve tse nang le kgatello e phahameng.
Ha e bapisoa le khokahano ea flange, e boloka thepa e ngata le matla a basebetsi, empa e boetse e hloka ho jara thepa e itseng pele, e le hore e ka sebelisoa ka mokhoa o tšepahalang ha khatello e ka har'a valve e se holimo. Li-valve tse entsoeng ka ho sebelisa molao-motheo oa ho tiisa ka boiketsetso hangata ke li-valve tse nang le khatello e phahameng.
Ho na le mefuta e mengata ea khokahano ea li-valve, mohlala, li-valve tse ling tse nyane tse sa hlokeng ho tlosoa li tjheselletsoa ka liphaephe; li-valve tse ling tse seng tsa tšepe li hokahantsoe ka li-socket le tse ling. Basebelisi ba li-valve ba lokela ho phekoloa ho latela boemo bo itseng.
Hlokomela:
(1) Mekhoa eohle ea khokahano e tlameha ho sheba maemo a tsamaellanang le ho hlakisa maemo ho thibela valve e khethiloeng ho kenngoa.
(2) Hangata, phaephe e bophara bo boholo le valve li hokahantsoe ka flange, 'me phaephe e bophara bo bonyenyane le valve li hokahantsoe ka khoele.
Nako ea poso: Phuptjane-18-2022
